The phylogenetic relationships of Gyrodactylus pseudorasborae n. sp. and G. parvae parasitising Pseudorasbora parva within related Eurasian Gyrodactylus species. The phylogenetic tree is inferred from a Maximum Likelihood (ML) analysis of the 834 bp alignment of ITS1-5.8S rDNA-ITS2 sequences. Numbers along branches represent Bayesian posterior probability/ML bootstrap support (only values > 0.70 for BI and > 50% for ML shown). Newly obtained sequences from the present study are in bold. Sequences of Gyrodactylus species parasitising Pseudorasbora parva are highlighted in grey. The branch length scale bar indicates the number of substitutions per site.